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Climate Change Indicators in the United States

The U.S. Environmental Protection Agency (EPA) has published this report, Climate Change Indicators in the United States, to help readers interpret a set of important indicators to better understand climate change. The report presents 24 indicators, each describing trends in some way related to the causes and effects of climate change. The indicators focus primarily on the United States, but in some cases global trends are presented in order to provide context or a basis for  comparison.

PDF file

The U.S. Environmental Protection Agency (EPA) has published this report, Climate Change Indicators in the United States, to help readers interpret a set of important indicators to better understand climate change. The report presents 24 indicators, each describing trends in some way related to the causes and effects of climate change. The indicators focus primarily on the United States, but in some cases global trends are presented in order to provide context or a basis for  comparison.

For each indicator, this report presents one or more graphics showing trends over time; a list of key points; and text that describes how the indicator relates to climate change, how the indicator was developed, and any factors that might contribute to uncertainty in the trend or the supporting data (referred to in this report as “indicator limitations”). The report also includes a summary of major findings associated with each indicator. Additional resources that can provide readers with more information appear at the end of the report.

All of the indicators selected for this report are based on data that have been collected and compiled by following rigorous protocols that are widely accepted by the scientific community. Various government agencies, academic institutions, and other organizations collected the data.

Author(s):
U.S. Environmental Protection Agency
Washington, DC


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